Improvement in machines for making cartridge-shells



A. C HOBBS.

MACHINES F03 MAKING CARTRIDGE SHELLS. No.177.066,

Patented May 9,1876.

I 17m r NFETEHS, PHOTO-UTHOGRAFHER, WASNNGTON. D. C-

UNITED STATES PATENT OFFICE.

ALFRED C. HOBBS, OF BRIDGEPORT, CONNECTICUT.

I IMPROVEMENT IN MACHINES FOR MAKING CARTRIDGE-SHELLS.

Specification forming part of Letters Patent No. 177,066, dated May9,1876; application filed February 8, 1876.

To all whom it may concern Be it known that I, ALFRED CHARLES HOBBS, ofBridgeport, county'ot Fair-field, and State of Connecticut, haveinvented a machine for removing the burrs or pieces left in punchingholes in cartridge-shells to admit the passage of the flame of thefulminate toignitethe powder in the body of the shell, of which thefollowing is a specification:

My invention relates to a machine for pre- D. Between these two slidingheads D, and" secured to the arm 0, is a stop, E, against which theset-screws F bear in adjusting the sliding heads to their properpositions to admit the heads of different-sized shells between theturning mechanism. To the lower sides of these two yielding heads D isfitted one form of mechanism for turning or revolving a shell to removethe burrs therefrom, and consists of a grooved frictionwheel, G,attached to and revolving upon one head, and a grooved stationary piece,I, secured to the other head, by the joint-action of which a shell isturned or revolved upon its mandrel by the edge of the head fitting ingrooves a of the wheel G and plate I in its movement or passage betweenthem.

A spring, J, connecting the sliding heads D, is provided, by which ayielding pressure is brought upon the rim of each shell with sufficientforce to cause it to revolve in its pas remove the burrs therefrom, arotating dial, K, driven by a belt, or in any other convenient manner,is mounted upon the bed-plate A, and projectingfrom the upper surface ofwhich, and near its periphery, is a series of mandrels,

L, for supporting the shells with their heads upward, and uponwhich theshells are placed to be carried through between the turning mechanism bythe rotating of the dial K.

The upper ends of these mandrels L are notched or grooved, so that theburrs to be removed from the shell may project downward into them, andas the shell is revolved the edges 13 rub or out off theburrs 0, whichescape from the shell at the lower ends of the notches a. (See Figure2.)

The grooves n in the wheel G and stationary plate I serve twopurposesonc to facilitate the revolving of the shell by pressure uponthe edge of the head in passing between them, and the other to preventthe shell from rising, and thus perhaps pass over the burrs withoutremoving them.

It isevident that many devices might be sub- Q stituted for theoneherein described for revolv ing a shell to remove the burrs therefrom,and I desire to be understood as not confining myself to the exactconstruction herein set forth, but

to embrace the equivalents thereof, for the purpose specified.

Having thus any described my invention, what I claim therein as new, anddesire to secure by Letters Patent, is-

The combinationof one or, more standing mandrels, upon and aroundwhichthe shells are placed,'and mechanism to cause the shells to revolve onsaid mandrels, the same being a grooved but stationary plate, and meansfor moving the shells along and in contact with said plate,substantially in the manner

